PartsTable
Technical Data Sheet
Download PDF

S4127 PART 56 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S4127 PART 56: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include shank_length: 0.250 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.125 INCHES NOMINAL IN, style_designator: ROUND, CLOSED W/SHOULDER, thread_direction: RIGHT-HAND, eye_stock_thickness: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-288-1394, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
S4127 PART 56
NSN: 5306-01-288-1394
FSC: 5306 — Bolts
CAGE: 52406 — RUGGLES-KLINGEMANN MFG CO DBA THE RUGGLES-KLINGEMANN COMPANY (USA)
SPECIFICATIONS
shank_length0.250 INCHES NOMINAL IN
thread_class2A A
thread_length0.125 INCHES NOMINAL IN
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_stock_thickness0.312 INCHES NOMINAL IN
thread_quantity_per_inch18
thread_series_designatorUNF
NSN5306-01-288-1394
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S4127 PART 56 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD LENGTH: 0.125 INCHES NOMINAL IN
•
SHANK LENGTH: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, CLOSED W/SHOULDER
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
•
EYE STOCK THICKNESS: 0.312 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 18
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.125 INCHES NOMINAL IN
SHANK LENGTH0.250 INCHES NOMINAL IN
STYLE DESIGNATORROUND, CLOSED W/SHOULDER
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A A
EYE STOCK THICKNESS0.312 INCHES NOMINAL IN
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNF
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy S4127 PART 56?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is S4127 PART 56?
S4127 PART 56 is a BOLT,EYE.
What is the NSN for S4127 PART 56?
S4127 PART 56 is cataloged in the U.S. Government catalog under NSN 5306-01-288-1394. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — S4127 PART 56

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.